Atomizing device



Patented Dec. 6, 1938 NITEID @STAT ES PATENT OFFICE 2,139,506 ATOMIZING DEVICE William Richard Kuzelk'a, New York, 1N. Y.

.Application April .18, 1936, Serial No. 75,127

10 Claims.

`The lpresent invention relates -to improvements in atomizing devices adapted to eifect the lvaporization of liquids in an improved mannerfpermitting more accurate adjustment and control -of the vaporization whereby agreater :degree of uniformity in the dispersion and distribution of the liquid is insured. My .improved device is adapted for varied uses wherein facility of lcontrol and uniformity in the atomization Yof `the vvaporized liquid is desired, such as in carburetors, oil burners, and sprayers for varied purposes.

Important `features vof the present invention which `contribute lto :the "improved Yaction of the device consist of an atomizeroonstruction including a sui-table container which may -have `provision for maintaining a :constant level therein of the liquid to Abe -atomized and having a cham- `bered injector member positioned "to Abe partially immersed within the 'liquid .and having `communication with thelusual .spray nozzle, the injector member having an elongated :injector opening or port for admitting .lair or other fluid `under pressure as an impelling mediumor liquid carrying vehicle; the arrangement f-urther'providing for relative adjustment of the injector member with `relation to the vliquid level for regulating the degree of vaporization-of the liqud discharge. In the preferred embodiment, means are provided for raising and 'lowering of the linjector member within the container `and liquid and operable externally of 'thecontainer to facilitate the `adjustment without interruption to Vthe .spraying operation.

The .foregoing and other important `features and advantages of my .present improvements will be `more Yfully understood by reference to the `ac- .companyngdrawing wherein rlike reference 4char-- acters are .applied to the corresponding parts in the `several views. In the drawing, Fig. l is a view .in vertical sectionshowinga desirable atom- ...izer construction made accordance with my invention. 2 .is -a similar view showing a desirable modification thereof. Fig. 3 is a vertical .sectional view .of .the.construction of Fig. 2 taken at right .angles thereof.

In the .drawing wherein `I have show-n an approved .embodiment-iof .theseveral features `of Ymy improvements `I indicates .a suitable container `for the liquid yto be atomizedfandsprayed having at -2 an intake port lfor fluid under .pressure such `as air -from .a compression chamber to be employed as the impelling force and carrying vehicle `for uthe vaporized liquid. Means are provided for maintain-linge. constant `level of the liquid Vwithin the container which is here shown in the form of a needle valve 3 carried upon lever 4 fulcrumed at 5 upon a bracket 6 and having pivotal link connection 8 to a float member 9. The valve .3 'coacts with a valve seat Ill of a bot- .5 tom intake port for the liquid supply delivered from a suitable source or tank through connection l2 through valve member VI4 having additional control valve l5 mounted upon a threaded spindle I6 provided with external adjusting member Il. `10 The latter. valve, as will be understood,.is employed to check the intake flow of the liquid and for shutting off of the liquid supply when desired. f

In accordance with my invention as illustrated in Fig. 1 there is provided an injector member 20 l5 of tubular form and positioned vertically to eX- tend through a bearing bracket 2| secured to the top ofthe container, the injector member having a closed upper threaded end portion 23 to which is iitted an adjusting nut 24 bearing upon the `20 upper surface of the bracket 2|. The injector member is further formed with an annular shoulder 25 engaged by a compression spring 26 `bearing upon the inner surface of the tank to exert a downward pressure on the member whereby ad- Ig5 justnient of the nut 24 will determine the vertical position of the member with relation to the liquid. T-he injector is further formed with a vertical and longitudinal central bore or passage opened at its lower-end into the liquid and forming above the liquid a chamber .28 communicating at its upper Yend portion through a vertical side slot 29 with the bore or passage 30 of thedischarge `nozzle 3l having a metered opening 32 for the dispersion of the liquid. 'I'he nozzle 3| as shown 3 5 is formed integral with the bracket 2l and the latter 'carries an inwardly extending pin 33 Areceived within the elongated slot 29 to oppose rotative movement ofthe injector member or tube 20.

In accordance with an important feature of my 40 invention the injector eiect and atomization of the liquid is caused to occur at the liquid level, this being accomplished by the provision of a vertically alongated, metered slot or duct 35 formed in the side wall of the injector tube for vthe entrance of the air under pressure to pass upwardly through the otherwise 'closed chamber portion 28 and outwardly through the nozzle as will be understood. Adjustment of the nut 24 in the structure as described will cause vertical change in the position of the injector member thereby altering the degree of immersion of the metered `duct 35 within the liquid with corresponding adjustment of the exposed portion of the slot thereabove. `As a result there is provided means for accurately determining the degree of atomization of the liquid which by reason of a constantly maintained liquid level will have an improved degree of uniformity as related to the liquid or vapor content, this uniformity of vapor discharge being furthered by the precipitation of liquid in the upward passage of the fluid through the vertical chamber 28 in its travel to the discharge nozzle. As will be understood with a constant air pressure and maintained liquid level, adjustment in the elevation of the injector tube 20 will accurately control the degree of atomization and resultant vapor content of the discharge'Y through the nozzle 3| which while shown integral with the bracket 2l may, if desired, be connected to the bracket by a suitable fiexible hose connection.

In Figures 2 and 3 there is shown a desirable modified structure embodying the features of my invention. As there shown I indicates, the container having the air intake port 2. 'I'he container is provided with a vertical partition 38 to provide a double chamber, the partition being formed with a lower opening 39 for maintaining equal the liquid level within the chambers and with an upper opening 40 for equalization of the air pressures therein. The means for maintaining a constant liquid level is positioned within the smaller chamber as shown and consists of liquid intake pipe 4I and discharge pipe 42 of slightly lesser elevation, the upper discharge end of which determines the level of the liquid. The injector member 44 is in the form of a U shaped tube having an upward extension 45 slidably fitted within a discharge nozzle bracket member 46 secured upon the container. The injector member is arranged to be adjustable vertically therein by means of an external lever 48 mounted on a shaft 49 carrying arm 50 connected by pivotal link 5| to a bracket 52 on the injector member. l

The shorter leg of the injector tube is, as shown, formed with an elongated vertical slot 54 extending below the liquid level for admitting liquid Within the bottom portion of the injector tube and for the admission of air as an atomizing agent and carrier for the vapor in its passage upwardly through the tube to the discharge port 5S of the nozzle. The upper closing wall of the short leg of the tube is provided with a restricted air opening 51 supplementing the air intake to the injector tube. In this modified construction as described a limited volume of the liquid is entrapped in the bottom of the injector tube through which the atomizing fluid is forced to pass in its travel to the nozzle.

While I have shown and described approved embodiments of the features of my invention, it will be understood that varied modifications in construction and arrangement of the parts may be madeI without departing from the scope of the invention as defined in the appended claims.

Having described my invention, I claim:

1. An atomizing device of the character described comprising a container, means for maintaining a constant level of liquid within the container, means to introduce fluid under pressure to the container toy effect the atomizing of the liquid, an injector member having an internal chamber and provided with an elongated intake slot thereto positioned to extend above and into the liquid, means to adjust the position of the injector member relative to the liquid level and a discharge nozzle having a reduced outlet opening directly communicating with the injector member chamber.

2. An atomizing device of the character described comprising a container, means for maintaining a constant level of the liquid in the container, means to introduce air under pressure to the container for atomizing the liquid, a chambered injector member positioned to extend externally of the tank and into the liquid and provided with a vertically elongated intake slot positioned to extend above and into the liquid, means for manually adjusting the position of the injector member to vary the degree of immersion of the rslot in the liquid and a discharge nozzle having a reduced outlet opening directly cornmunicating with the injector chamber.

3. An atomizing device of the character described comprising a container, means for maintaining a constant level of liquid within the container, means to introduce fiuid under pressure to the container, an injector member consisting of a tube of U formation having an upwardly vextending leg member, a bearing member on the container within which the upwardly extended leg member is slidably fitted, said injector tube having a shorter leg member provided with an elongated air intake slot extended above and into the liquid and means for adjusting the position of the injector member with relation to the liquid level.

4. An atomizing device of the character described comprising a container, means for maintaining a constant level of liquid within the container, means to introduce air under pressure to the container, an injector member consisting of a tube of U formation having an upwardly extending leg member, a tubular bearing and nozzle member on the container within which the upwardly extended leg member is slidably tted, said injector tube having a shorter leg member providedwith an elongated air intake slot extended above and into the liquid and means for adjusting the position of the injector member consisting of a shaft journalled on the container, an external lever on the shaft, an arm on the shaft within the container and a connecting link pivotally connected to said arm and to the injector member, substantially as described.

5. An atomizing device of the character described comprising a container, means for supplying liquid to said container, means to introduce fluid under pressure into the container to effect the atomizing of the liquid, an injector member having an internal chamber and provided with intake means from the container to the chamber, said intake means having an effective length longitudinally of said injector member in substantial excess of its width and positioned to extend above and below the level of the liquid in the container, means to adjust the intake means relative to the liquid level and a discharge nozzle having a reduced outlet opening directly communicating with the injector member chamber.

6. An atomizing device of the character described comprising a container receiving liquid, means for introducing a gaseous fluid under pressure into said container to effect a sufficient pres sure to cause the atomizing of the liquid, an injector member having an internal chamber and provided with intake means from the container to said chamber, said intake means extending above and below the level of the liquid in said container, and means enabling manual adjustment of said intake means relative to the liquid level whereby the degree of atomization may be regulated and a discharge nozzle having a reduced outlet opening directly communicating with the injector member chamber.

7. An atomizing device of the character described comprising a. container receiving liquid, means for introducing` a gaseous iiuid under a suiiicient pressure into said container to eiect the atomization of the liquid, a U-shaped injector member having an internal chamber, a discharge nozzle for one of the legs of the U-shaped injector member, the other leg being provided with intake means from the container to said chamber, said intake means having an effective length longitudinally of said injector member in substantial excess of its width and positioned to extend above and below the level of the liquid in said container, and means to adjust the relative position of said intake means and the liquid level.

8. An atomizing device of the character described comprising a container receiving liquid, means to introduce a gaseous fluid under pressure into said container to effect the atomization of the liquid, a U-shaped injector member having an internal chamber, a discharge nozzle for one of the legs of said U-shaped injector member, the other leg being provided with' intake means having an opening extending above and below the level of the liquid in said container and means enabling manual adjustment of said intake means relative to the liquid level whereby the degree of atomization may be regulated and a discharge nozzle having a reduced outlet opening directly communicating with the injector member chamber.

9. An atomizing device of the character described comprising a container receiving liquid, means to introduce a gaseous iiuid under pressure for atomizing, a tubular injector member having an upper threaded portion and an extension downwardly into the liquid, said injector member having an internal chamber open to the liquid and having an elongated fluid intake slot to the chamber, the slot being positioned to extend above and into the liquid, means for adjustably supporting the injector member consisting of a sleeve on the container having a bearing opening for the threaded injector portion, an adjusting nut threaded on the injector member and bearing on the bracket, a spring engaging the injector member to exert a downward pressure thereon, a discharge nozzle connected to an opening in said sleeve and said injector member having an elongated slot communicating with the chamber thereof and registering with the sleeve opening.

10. An atomizing device of the character described comprising a container receiving liquid, means for maintaining constant level of liquid within the container, means for introducing air under pressure to the container, a tubular injector member having an upper threaded portion and extended downwardly into the liquid, said injector member having a bore chamber open to the liquid and having an elongated fluid intake slot to the chamber, said slot being positioned to extend above and into the liquid, means for adjustably supporting the injector member consisting of a sleeve on the container having a bearing opening for the threaded injector portion, an adjusting nut threaded on the injector member and bearing on said sleeve, a discharge nozzle connected to an opening in said sleeve and said injector member having an elongated slot communicating with the chamber thereof to register with the sleeve opening and a pin carried by the bracket engaging said slot.

WILLIAM RICHARD KUZELKA. 

